Seychelles-based cryptocurrency exchange HTX (formerly Huobi) lost $7.9 million worth of ETH to a hacker, according to on-chain data. 🚨 The exchange has already identified the culprit and is demanding the return of the funds under threat of legal action.

According to blockchain security firm Peckshield, exactly 4,999 ETH ($7,866,926.30) left Huobi's wallet at 10 a.m. on Sunday. ⏰

Tron founder and Huobi advisor Justin Sun confirmed in a statement on Monday that the money transferred out was indeed a hack, listing the hacker's addresses here and here.

Sun stated that the exchange has already covered all losses and all related issues have been resolved.

The billionaire added that in total, HTX held $3 billion worth of assets for clients and that the exchange's losses to the hacker were equivalent to two weeks' worth of revenue for the exchange.

In a blockchain-based message, the exchange provided the hacker with an address to return all funds and gave him one week to do so.

“We will offer you a 5% white hat bonus,” HTX said. "If you do not return the funds by then, we will take legal action."